from tkinter import *
coords = [0, 0, 10, 0, 10, 10, 20, 10, 20, 20, 10, 20, 10, 30, 0, 30]
x=int(input("Введите координату x: "))
y=int(input("Введите координату y: "))
n=int(input("Введите коэффициент увеличения: "))
if n == 0 and x>=0 and x<=500 and y>=0 and y<=500:
	pass
else:
	if n > 0 and 0*n+x>=0 and 0*n+y>=0 and 20*n+x<=500 and 20*n+y<=500:
		pass
	else:
		if n < 0 and 20*n+x>=0 and 20*n+y>=0 and 0*n+x<=0 and 0*n+y<=500:
			pass
		else:
			print('Размер фигуры превышает максимальный размер поля')
			exit()
root = Tk()
root.title("ИТ-марафончик")
root.geometry("500x500")
canvas = Canvas(bg="white", width=500, height=500)
canvas.pack(anchor=CENTER, expand=1)
canvas.create_polygon(coords[0] *n+x, coords[1] *n+y, coords[2] *n+x, coords[3] *n+y, coords[4] *n+x, coords[5] *n+y, coords[6] *n+x, coords[7] *n+y,  coords[8] *n+x, coords[9] *n+y,  coords[10] *n+x, coords[11] *n+y, coords[12] *n+x, coords[13] *n+y, coords[14] *n+x, coords[15] *n+y)
root.mainloop()
